I'm sure
Lagoon has standardized on a particular device and are not selecting at random. My
boat S/N is in the 300s if this helps. I'd like to have one trip up the
mast simply to replace it. The reason I posted the question is to elicit community information which I think is the primary purpose of this site. In any case if somebody knows the answer I'd appreciate it. If you don't, no need for banal responses. Thanks.